I know this realy doesn't go with the theme of the board, but I hope one of you could help me with this. I need a way to convert 12v DC out of a car battery to 120v Ac so I can use a home radio and amp for a parade. I know they make these converters but they are not to cheep just for 2 parades. So I was wandering why can't I just use a transformer from Radio Shack, they are only around $15, I was just wandering what I should get. On the web it says 120VAC Primary, and 12.5 Secondary. Would that work? I am not sure if I could just reverse it and how would I convert the DC input to AC output?
Thanks for any help,